The information below is from the multiple regression analysis computer output for 28 teams in Major League Baseball. The model is designed to predict wins using attendance, payroll, batting average, home runs, stolen bases, errors, and team ERA. 
The number of degrees of freedom to be used in determining the critical value of t to be used in a hypothesis test of the regression coefficients is:
Definitions:
Biome
One of the biosphere’s major communities, characterized in particular by certain climatic conditions and particular types of plants.
Temperature
A measure of the warmth or coldness of an environment or substance, typically expressed in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K).
Soil Conditions
The varying physical, chemical, and biological characteristics that influence the growth and health of plants.
Climate
The average weather conditions, including temperature, precipitation, and wind, in a region over a long period.
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